QUESTION My ViewSonic monitor refuses to display a picture. The LED blinks on and off for around 30 minutes, after which time the screen will often work following a restart. A local repair shop says there is nothing wrong with the hardware. Keith Sales

HELPROOM The blinking LED indicates no signal to the monitor, and the problem could be as simple as your needing a new monitor lead. The cable pins and internal solder can become loose or cracked with no outwardly visible signs.

If your monitor and PC both have more than one connection type, such as VGA and DVI, try using a different input method. Another option is to use a different power source for your monitor, particularly if a single plug is powering your PC and all its peripherals.

Failing that, check your graphics card is seated correctly and that its connectors aren’t bent or missing.

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